[LUCENE-1421] Ability to group search results by field

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.2, 4.0-ALPHA
• Component/s: core/search
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Artyom Sokolov
• Created: 13/Oct/08 12:40
• Updated: 03/Jun/11 16:37
• Resolved: 14/May/11 16:19

Description

It would be awesome to group search results by specified field. Some functionality was provided for Apache Solr but I think it should be done in Core Lucene. There could be some useful information like total hits about collapsed data like total count and so on.

Thanks,
Artyom

Issue Links

• is related to: LUCENE-3098 Grouped total count
• is related to: LUCENE-3097 Post grouping faceting
• relates to: SOLR-236 Field collapsing